Air conditioner air switch voltage problem, why does the air conditioner want to switch on and off

1. It depends on the thickness of the power cord, 4 square copper core wire, 25A air switch should be used, 6 square copper core wire, 32A air switch should be used.

5 hp air conditioner, the meter is installed separately, 20A is enough.

Your home is three-phase electricity, air conditioning and other electrical equipment separate (three-phase electricity should be about the same for each phase) 4 horsepower you can use 25a or 32a, if the same way of horse, you choose 32 when you open it.

Is the empty open 380? I haven't seen a four-horse machine, is it 380 electricity? Explain the white point to analyze.

Because the current of the air conditioner is very high at the moment of sudden start, although the air conditioner is only about 16A when it is running, it is far greater than 16A when it is started. At this time, if other electrical appliances are open and the air conditioner is the same one, it is very easy to produce voltage instability, and the light case will burn out other electrical appliances, and the heavy case will catch fire due to excessive current. Workaround:

1. When installing air conditioners, each air conditioner can be divided into a separate road, and the sockets like kitchen and sanitation can also be divided separately, and finally the rest of the sockets are divided according to the actual situation, so as to avoid burning out other electrical appliances or the danger of fire. 2. In many old buildings, when the power of the air conditioner is relatively large, it is easy to start the operation of the air conditioner, and the indoor light will suddenly flash, which is the situation of voltage instability. Therefore, in this case, it is necessary to install an air switch separately, so that these problems can be avoided.

3. The installation method of the air switch, the air switch is connected to the power cord of the air conditioner, and three wires are required: live wire, neutral wire and ground wire. The neutral wire of the live wire is connected to the lower end of the branch switch, and the ground wire is connected to the common terminal of the total ground wire. Control the air conditioner air switch to select a miniature circuit breaker of 20A.

The terminal blocks should be tightened to prevent loosening.

1.Air compressor pressure adjustment.

Rotate the pressure adjustment screw clockwise, and the closing and disclosing pressure increase simultaneously.

Rotate the pressure adjustment screw counterclockwise, and the closing and disclosing pressure are reduced synchronously.

2.Differential pressure adjustment.

Rotate the differential pressure adjustment screw clockwise, the closing pressure remains unchanged, and the disconnection pressure increases.

Rotate the differential pressure adjustment screw counterclockwise, the closing pressure remains unchanged, and the disconnection pressure decreases.

Extended information: The pressure switch adopts a high-precision, high-stability pressure sensor and transmission circuit, and then realizes the detection, display, alarm and control signal output of the medium pressure signal through the special CPU modular jujube signal processing technology.

The pressure switch can be widely used in the measurement and control of gauge pressure and absolute pressure of various gases and liquids in the fields of petroleum, chemical industry, metallurgy, electric power, blind water supply and other fields, and is an ideal intelligent measurement and control instrument for industrial sites. Pressure switches are widely used in aerospace and military fields, such as M1A1 tanks, Apollo spacecraft, Boeing 747, Airbus A320, F22, F117 and other products.

Generally speaking, the air compressor is automatically started at low pressure and stopped automatically at high pressure. I don't know what kind of air compressor yours looks like, piston or screw. But in either case, there is usually a pressure switch or pressure sensor to achieve automatic control.

Therefore, if you need to adjust the pressure of the air compressor, you only need to adjust the action range of the pressure switch and the starting pressure set on the sensor. The pressure switch has a range and a diffeThe range can be adjusted as needed, and the diffe is generally not moving.

If you want to adjust the air pressure sensor, you only adjust the set start-stop pressure value and not the pressure sensor itself. If there is a display panel on the air compressor, there is generally a set pressure, in which the value is adjusted to change the start-stop pressure.

Different switches have different adjustment methods, I don't know which one you have with the state stool.

There are two commonly used types, one is that the differential pressure is fixed by the switch itself, and only adjusts the automatic shutdown pressure, the highest pressure. This kind of knob with two flathead screwdrivers on the switch is debugged, and the two knobs must be adjusted consistently (otherwise they will stop when they move together, stop and start again, and burn out the electrical appliances.) ）

The other is to adjust the starting pressure (low pressure) and the pressure of the stopper, which is not easy to adjust compared to the previous one.

Regardless of which one should be on the switch shell or cover, there should be a way to adjust the thick limbs

Air conditioning pressure switch: mechanical and electronic, used to measure or monitor the pressure parameters of pipes, containers, and equipment. It is often said that the condensing pressure of the air conditioner, the discharge pressure of the compressor, the suction pressure of the compressor, the pressure of the evaporator, etc.

As soon as the pressure in these parts is higher (lower) than a certain value, this pressure switch gives an electrical signal to either alarm or shut down.

Generally, the exhaust pressure of the air conditioning compressor and the pressure of the condenser are too large, which is directly shut down, and it needs to be reset after manual inspection to continue to operate.

The principle of an automobile air conditioner is the same as that of a household air conditioner. Structurally slightly different from a household air conditioner, the capillary tube is replaced by an expansion valve on the element. In the form of dragging, it is different from household air conditioners, which are dragged by electricity, while car air conditioners are dragged by car engines.

In the form of control, the household air conditioner directly controls the energizing and power-off of the compressor, while the automobile air conditioner controls the compressor electromagnetic clutch.

The automotive refrigeration system consists of a compressor, a condenser, an expansion valve, and an evaporator (in which the expansion valve and evaporator are installed in the vehicle), which are connected into a sealed system with pipes and filled with refrigerant. The refrigerant liquid is heat exchanged with the cooled object at a low temperature in the evaporator, absorbs the heat of the cooled object and vaporizes, and the low-pressure steam generated is sucked in by the compressor and discharged at high pressure after compression. The high-pressure gaseous refrigerant discharged from the compressor enters the condenser, is cooled by air at room temperature, and condenses into a high-pressure liquid.

When the high-pressure liquid flows through the expansion valve, it throttles and becomes a low-pressure and low-temperature gas-liquid two-phase mixture, which enters the evaporator, in which the liquid refrigerant evaporates and cools in the evaporator, so that the temperature in the car is reduced, and the low-pressure steam generated is sucked in by the compressor again, and so on, and so on, and so on.

There is no point in working without pressure, there is no high-voltage protection switch, and the battery of the car is 12V

The maximum generator is 14V, that is, the maximum is 14V

This is a trolley's.

The air conditioner pressure switch usually has three wires, one 12V

The other two, one is a high-pressure switch and the other is an atmospheric switch, which will disconnect the compressor electromagnetic clutch when the pressure is too high.

High pressure, low pressure, high pressure end pressure is too high, the high voltage switch will be turned on, let the fan rotate at high speed, will not destroy the system because of high pressure. If the pressure is too low, the compressor will not work, so it will not damage the compressor.

Air conditioner air switch failure is one of the important parts of air conditioning operation, once the failure will affect the operation of the entire air conditioner. There are several situations when the air switch of the air conditioner fails:

1.Failure to start normally: This situation is mainly due to the poor contact or damage of the early gas switch of the empty jujube mold.

It is necessary to check the contact of the air switch, if the contact is bad, the air switch can be cleaned and reinstalled, if the air switch cannot be started properly due to wear, the air switch needs to be replaced.

2.Failure to stop normally: This condition is mainly caused by a short circuit or an open circuit in the control loop. It is necessary to check the connection and wiring of the control loop, and if the wiring is found to be loose or short-circuited, it needs to be reconnected.

3.Failure to switch normally: This situation is mainly caused by the burning of the internal fuse of the air switch. The fuse inside the air switch needs to be replaced to ensure normal operation.

4.Abnormal output: In this case, the switch indicator is flashing or there is no output stool. It is necessary to check the switching power supply, air switch input signal, relay output, etc.

In the use of air conditioners, if there is a failure of the air switch of the air conditioner, it needs to be repaired and maintained in time to ensure the normal operation of the air conditioner, and to ensure the efficiency and safety of the air conditioner.

If the air switch of the air conditioner is faulty, it can cause the following problems:

1.The switch won't turn on or off: If the switch doesn't work properly, it may be that the switch itself is faulty and needs to be replaced with a new one.

2.Loose or jammed switches: Sometimes switches can become loose or stuck, preventing the state from properly switching the air mode of the air conditioner. You can try to check that the switch is secure, and if it gets stuck, you can try using some lubricant.

3.Faulty switch: Sometimes the switch may fail and the air mode of the air conditioner cannot be switched. This can be caused by a faulty circuit or damage to the internal components of the switch. A professional is required to repair or replace the switch.

4.Flashing or not illuminating switch light: If the switch light is blinking or not illuminating, it may be caused by faulty circuit connections or damaged switch bulbs. You can check whether the circuit connection is normal, and if there is a problem, you can replace the bulb or repair the circuit connection.

In short, if the air switch of the air conditioner is faulty, it is recommended to ask a professional to check and repair it as soon as possible to ensure that the air conditioner can be used normally.